How many DC motors are there?
There are 3 main types of DC motor that are available:- Series, Shunt and Compound.
What is the difference between a DC shunt and a series motor?
A series motor respond by decreasing its speed with small increase in current for a given load torque. A shunt motor holds its speed nearly constant with large increase in input current for same amount of load torque.
What is DC motor & Types?
Mainly there are two types of DC Motors. The self-excited motors are further classified as Shunt wound or shunt motor, Series wound or series motor and Compound wound or compound motor. The dc motor converts electrical power into mechanical power. The construction of the dc motor and generator are the same.
What is the principle of DC motor?
The basic working principle of the DC motor is that whenever a current carrying conductor places in the magnetic field, it experiences a mechanical force. Fleming’s left-hand rule and its magnitude decide the direction of this force.
How do you identify a DC motor?
Look for the stator core construction and rotor. If there is no commutator, then it is a AC motor. If there is a commutator and brushes, it may be either a DC motor or an AC commutator motor (Universal motor).
Which is more powerful AC or DC motor?
AC motors are generally considered to be more powerful than DC motors because they can generate higher torque by using a more powerful current. However, DC motors are typically more efficient and make better use of their input energy.
What is basic principle of DC motor?
Why do we use a DC series motor?
DC series motors are used mainly for industrial applications, e.g. elevator and pulley and winches systems for carrying heavy loads. Heavy and magnificent cranes drawing thousands of amperes are driven by this motor.
What are the characteristics of a DC series motor?
DC Motor Characteristics Permanent Magnet Motors. The permanent magnet motor uses a magnet to supply field flux. Series Motors. In a series DC motor the field is connected in series with the armature.The field is wound with a few turns of large wire because it must Shunt Motors. Compound Motors.
What are the disadvantages of DC motor?
Disadvantages of DC motors: High initial cost Increased operation and maintenance cost due to presence of commutator and brush gear Cannot operate in explosive and hazard conditions due to sparking occur at brush ( risk in commutation failure)
What are the 4 types of DC motors?
Basically, four different types of DC motors are used in industrial applications: series wound, shunt wound, compound wound, and permanent magnet. Several factors must be considered when selecting a DC motor for a specific application.
